US1277255A - Feeder for molten glass. - Google Patents

Description

K. E. PElLER.

FEEDER FOR MOLTEN GLASS.

APPLICATION FILED AUG. 1, liii2 Patented Aug. 27, 1918.

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ffarl E Feller a W WEE/26556 K. E. PEILEH.

FEEDER FOR MOLTEN GLASS.

APPLICATION FILED we. I. \912.

1 277,255. Patented Aug. 27, 1918.

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EDER FOR MOLTEN Patented Aug. 27, 1938.

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K. E. PEILER.

FEEDER FOR MOLTEN GLASS.

APPLICATION men MIG. 1. m2.

1,277,255. Patented Aug. 27,1918.

5 SHEETSSHEET 5- Wi''lzesses: [1206125072 KM b ZI'QI'ZR JZQ' .7 I if I mm B. PEILEB, O! HARTFORD, CONNECTICUT, AB SIGHOR 'I'O HARTFORD-ELMO!!! COIPAHY, OF CLHAJORLBIE, NEW

YORK, A CORPORATION OF NEW YORK.

FEEDER FOB MOI-TEE GLASS.

Specification of Letter: Patent.

Patented Aug. 7, 1918.

Application fled August 7, 1912. Serial 10. 718,738.

To all whom it may concern:

Be it known that I, KARL EJPnInnn, a citimen of the United States, raiding at. Hartford, in the county of Hartford and State of Connecticut, have invented new and useful Improvements in Feeders for Molten Glass, of which the following is a specification.

This invention relates to means for separating and feediu r molten glass from a glass melting tank or uruace or other source of supply, in uniform drops or gathers delirered at. uniform intervals of time, to glass shaping molds, or other devices, or for other purposes, the general object of the invention being to produce simple, elfective and easily controlled and regulated devices for performing this function.

The feeding of molten lass is attended by peculiar dilliculties, unlifie those attendant upon the feeding of any other material. It must be maintained at a high and uniform heat, to insure the maintenance of a proper plastic condition. It is extremely viscous and adheres tenaciously to feeding and gatheri implements, unless they are kept cool, in w aich case the are liable to injuriously chill the glass. oreover, the separation of molten glass into drops or gathers tends to draw it. out more or less unequally and irllarly into threads, which chill more quickly and easily than a more compact mass, and thus further increase the diiliculty of separating the drops uniformly and maintaming them in the uniformly heated and plastic condition, which is essential for pressing or blowing or otherwise shaping the glass to bat advan In the prsent invention, these dilliculties are overcome by flowing the molten glass from a melt' tank or furnacetlor gther source of supp y, through an on et mm which the glas is impel and discharged in a. succession of waves or surges which are propagated by the action of a plurality of displacing members herein termed placers. The outlet is Preferably provlded with a dam, the top 0 which is a prommately at the normal level of the g as, so that the suweeding wavesor surges produced by the action of the displacers surge or wash over the dam, and settle down from the outlet in successive drops or globules, whichmaybeumdetotskeapearshaped form, suspended for the moment from the end of the conduit by an attenuating thread perature which of the glass. For some purposes the weight of the suspended glass'may be relied u on to sever its suspending thread with so cient uniformity and regularity; but where a considerable degree of uniformity and rapidity of action are required, it is preferable to provide other means, shown herein as shear bl de f r severing the suspending thread at the required the severed thread of glass, relieved-from the weight of the drop is retracted by its own inherent tendencies, aided by its connection with the succeedi mass or wave of glass, which, following the retraction of the displacer, settles down, forming a trough of the wave as 1t were on the inside of the dam, thus tending to draw the thread over the dam, and thereby reincorporating it with its connected portion of the glass. This incorporation or absorption of the thread is preferably aided by heat from a jet, or flame of gas playing upon the outlet, thus serving to maintain the glass and the threads at a temkeeps them in. uniformly plastic condition.

Figure 1 of the drawings is a side view of a preferred embodiment of this invention shown in connection with a glass melting tank or furnace, represented in section taken approximately along its longitudinal center.- Fig. 2 is a front view in section taken on the line 2 of Fig. 1, showin a cross section of the conduit. Fig. 3 is a rout view pro'ected from Fig. 1. Fig. 4 is a plan view pro ected from Figs. 1 and 3.

Figs. 5to 10 inclusive are side views in section taken throu h the longitudinal center of the conduit, s owing in enlar ed scale the successive movements of the dlsplacers and the consequent propagation of the waves or surges of lass. are similar si e views 0 a modified arrangement, illustrating the use of four displacers and illustrating their operation in propagiiting and advancing a wave or surge of g ass. a

The glass melting tank or furnace 1, containing a supply of molten glass 2 is provided with an outlet which is here shown as a conduit 3 into and along which the glass flows from the tank, and is maintained at approximately uniform level, either as a result of the operation of a. continuous melting tank or in any other convenient or available way.

periods. The suspended end of Fi 11 to 16 inclusive other as shown in Fig. 3, when the The discharging end of the conduit preferably terminates in a low wall or dam 4, the top of which is approximately at the normal level'ofthe glass in the conduit, as shown in Fig. 1, while the side walls 5 of the conduit are higher. The outer side of the dam is provided with a depending apron or lip 6, to carry the glass clear of the end of the conduit, tank or other container, making a definite point of discharge. The conduit is preferably inclosed by a hood 7 to confine the heat of the glass, which may be regulated or augmented by a jet or flame of gas from one or more nozzles 8.

The molten glass in the conduit is impelled to and over the dams in successive waves or surges, each discharging wave or surge carrying the required amount of lglass for the desired drop or gather. hese waves are propagated and carried over the dam 4 by the operations of a plurality of displacers 12 and 13 made from refractor material which project into the glass throng a slot or slots 14 in the hood or top of the conduit, or in the top of the tank or container. These displacers are clamped to, or otherwise suitably connected with the plungers 15and 16, which are herein shown to .be guided in the brackets 17 adjustably clamped upon the standards 18 rising from the floor or base of the machine, or other wise attached to the frame thereof. The

upper ends of the plungers 15 and 16 are vers 26, pivoted at 27 upon the bracket 28 supported by the standard 19. These connections between the levers 20 and their respective cam levers 26 are adjustable for -varying the amplitude of the vertical movements of the displacers. These levers 20 and 26 are preferably disposed relativeliy to each isplacers are at their highest position shown in Figs. 1 and 5, or at their lowest position, these levers being then in arallel relation to each other, so that the ad ustment of the connecting rods along the levers in either direction, operate to increase or diminish that movement atone end of their respective strokes, without changing the position .of the displacers atthe other ends of their strokes. The ends 29 of these connecting rods clamp upon the levers 20 and 26 and are jointed at 30 and 31 to permit the rocking movement of the levers. A turnbuckle 32 is also preferably provided inone or both of the connections for varyin the length-of one'or both of the connectlng rods, when desired, to correspondingly va the endwise osition of the path or stro e of one or hot of the displacers independently of the length or emplitndeof the respective strokes, to suit I the -height or the depth of the glass. 'The cam levers 26 engage by means of suitable rolls or pins 33 with the cams 34 and 35 upon thecam shaft 36. These cams are of a contour for roducing the desired movement of the disp acers and the cams are fastened upon the shaft in suitable relation to each other, so as to produce the desired alternations in the movement of the displacers relative to each other.

The gate displacer 13 should when in its lowest position be only sufficiently close to the sides and bottom of the conduitto prevent undue backward flow of the glass The viscosity of the glass allows considerable clearance which is desirable on account of the somewhat rou h and refractory character of the materials employed; and also because of their expansion and contraction, due to the extreme temperature ranges to which they are subjected.

The cam shaft 36 is mounted for rotation upon brackets 40 which are herein shown to be carried by the standards 19 and 62. The

shaft is driven by means of a chain 41 upon the sprocket wheel 42 or in any other con- 1 venient wa from any available source of power. en employed in connection with lass pressing or other mechanism, these ceding mechanisms should be driven from or with, or otherwise synchronized with that mechanism.

Means for definitely severing the thread and thus releasing the suspended drop at regular intervals are preferably provided.

'As herein shown the severing means consists of shear mechanism, which may be mounted upon the I-beams 43 or any other part of the furnace structure, or upon the glass press or other machinery with which this fender may be employed. The blades 44 and 45 of the shear which project beneath the end of.

the conduit, are attached to the respective hubs of the bevel gears 48 and 49 mounted for rotation in the bracket 50 supported on the I-beams 43. These bevel gears and their appurtenantshear blades are oscillated in.

opposite directions by means of the driving bevel car 55 upon the shaft 56, also journaled 1n the bracket 50 and having upon its opposite ends an arm 57 connected by means of therod 58 with a bell'crank 59 sup orted on a pivot stud 60, carried by the brac st or collar 61 on the standard 62. The opposite end of the bell crank engages by means of a suitable pin or roller 63 with a cam groove 64 on the cam 65 carried b the cam shaft 36. The cam thus operates tli rou hits connections to open and close the the proper intervals for cutting off the drop, as i1 ustrated in Figs. 9 and 15.-

ear blades at In the operation of this mechanism, the

transported to cated by an arrow pointing in the direction of that next movement. From the position shown in Fi 5 the dis-placer 13 moves down to the position shown in Fig. 6, and thus practically serves as a gate confining a pool of glass between itand the dam 4, and preventing the free backward How of glass from the pool, the height of which is also increased by the displacement. of glass due to the downward movement of the gate displacer 13. From this position. the displaccr 12 moves downwardly to the successive positions shown in Figs. 7 and 8, thus raising tothe required height the level of the glass in the now confined pool, and thereby further advancing the Wave 0" surge of glass and flowing it over the top of the dam to the other side thereof, where it settles, suspended from the lip 6 in the form of a globule 10. which is then released by the shear blades 4-! and 45 severing the thread 11 as shown in Fig. 9. At or before this time, the displacer 12 is raised, thus leaving room for the surrounding glass to sink down, and thereby draw back the severed end of the thread, as shown in Figs. 9 and 10, from which position the displacers retract to their first position shown in Fig. 5, thus allowing iuore glass to flow from the tank past the displacer to replace the quantity of glass previously displaced from the pool. This cycle of movements of the displacers is re- .pcated for each drop or separated mass.

Figs. 11 to 16 illustrate a modified arrangement employing a larger number of displacers 71, 72, 73 and 74. These, how ever, actin substantially the same manner as those already described, to propagate a succession of waves for flowing the glass along a conduit which is similar to that shown in the precedin figures.

The severed drops 0% lass may be delivered to the molds or other receptacles for which they are intended, either by falling directly into the molds, or by falling upon a chute or conveyer by which the dro s are,

of the conduit, the width and depth of its channel for the glass, and the size and length of stroke of the displacers should be proportioned to the size of the drop or mass tobe separated.

The mechanism which is herein shown to supported upon standards or arms adjacent to or appurtenant to the furnace itself maybe com med with or supported by the framin with w vich the feeder maybe employed, and the displacing and shear mechanisms may be driven by or in synchronism with the mechanism of such adjunctive or cooperating machinery. Thus in various ways whic will occur to those familiar with this art the construction and mode of operation of this feeder may be modifiedin various ways glass, for displacing the glass their destination. The ength.

of the machine or other apparatus to suit different circmnstances or conditions of service.

In my co-pending Number 133948, filed as a division or continuation of this application. I have described and claimed processes which the apparatus of this application is adapted to perform.

I claim as my inventionz- 1. The combination, in feeders, for molten glass. of a container for the glass, and means including a plurality of displacers coiiperating to displace a succession of timed sur es or waves of glass toward and over the side of the container.

2. Means for feeding regulated charges of molten glass from a container, including a displacing member mounted and guided for vertical movement in the glass adjacent to the container outlet. and mechanism for moving the plunger displacing member vertically, including means for varying the amplitude of the vertical movements of the said member.

3. The combination. in feeders for molten glass, of a conduit for the glass, and means including a plurality of displaccrs for successively displacing the glass in the conduit to propagate waves or surges of the glass along the conduit.

4. A feeder for molten glass including in combination a conduit for glass, and a plurality of displacers disposed side by side longitudinally of the conduit and movable successively dmvnwardly and upwardly in the glass, coiiperating with each other and with the conduit to advance successive waves of glass along the conduit.

5. A feeder for molten glass. including in combination a conduit for the glass, having a dam approximately at the normal level of the glass in the conduit, and a plurality of displacers adjacent to the dam, and mounted for successive movement into the to alternately raise and lower the level of the glass adjacent to the dam, to flow the glass over the dam in intermittent waves or sur s.

6. The combination, in feeders or molten glass, of a conduit for the lass provided with a dam, a plurality of 5i lacers, disposed adjacent to the dam, an moving the displacers in regulated succession to dis lace the glass adjacent to the dam and surgesover the dam.

he combination, in feeders for molten glass of a dam, a p'luralit of displacers arranged ad'acent to the am for movement downward y and upwardl in the glass, and means for lowering t e displaeers in succession, beginnin with the displacer farthest from the am, to approximately shut oil or edition or confine a pool of c the glass'a application, Serial means for ischarge it in timed successive accnt to the dam, and than 1'0 displace the glass from the said pool and flow it over the dam.

8. .The combination, in feeders for molten glass-,pf a container for the glass, means including a plurality of displacers for propagating successive waves or surges of the glass toward and over the side of the container, means for moving the displacers in prescribed succession to pro agate the wave movement, and means for a justin the vertical ositions of the. res ective isplacers.

9. he combination, in eeders for molten glass, of a container for the glass, means including a plurality of .dis lacers for propagating waves or surges o the glass toward and over the side of the container, and cams for moving the respective displacer's in prescribed succession.

10. The combination, in feeders for molten glass, of a container for the glass, means including a plurality 'of displacers for propagating waves orsurg'es of the glass toward and over the side of the container, cams for moving the respective dis lacers in prescribed succession, and means or adjusting the range of movement of one of the di lacers 11. pparatus for feeding molten glass,

including a container for the glass, means including a plurality ofdisp'lacers for propagating Waves or surges of the glass toward and over the sides of the container, and mechanism for automatically moving the respective displacers in a prescribed succession, including means for adjusting the endwise position of the path of movement of one o the displacers.

12. The combination, in feeders for molten glass, of a container for the glass, means including a plurality of displacers for propagating timed waves or surges of the glass toward and over the side of the container, cams for moving the respective displacers in prescribed succession and adjustable connections between one of the displacers and its cam for varying the amplitude and the range of movement of the displacer.

In testimony whereof I'have signed my name to this specification in the presence of two subscribing witnesses this 6th day of August, 1912.

. KARL E. PEILER. Witnesses:

WILLIAM A. LORENZ, E. R. ABBOTT.

Corfectlon In Le tterd Patent Nov 1,277,255.

It. is hereby certified that in Letters Pgtent No. l, 2?.7,255, grnnted Augeat 27, 1918, upen the application of Karl E. Poilelgif Hartford Connecticut, for an improvement in Feeders for Molten glue, on erratappears in the pri nted specification requiring cprrection as folio w n: Page 3, line 86; elaim 2, strike out the word plunger and that the said Inttera 1 mm sheuld be a with this entreemoi therein that the same may conform to therecord of the case in the Patent Signed and sealed this 22d day of Oetober, A. D., 1918.

R. F. WHITEHEAD, A055 of Penna.

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